Hinge and lock structure



April 8 D. W. THORNTON HINGE AND LOCK STRUCTURE Filgd March 27. 1922 2 shams-sheet 1 w l o O a 0/ @Wow I April s, 1924,` 1,489,679

D. W. THORNTON HINGE AND LOCK STRUCTRE Filed March 27. 1922 2 Sheets-Sheet 2 @Hof/uab WW1/Leon Patented pr. S, i924.

PATENT OFFICE.

DAVID W. THORNTON, OF TACOMA, WASHINGTON.

HINGE AND Lock STRUCTURE.

`Application filed March 27, 1922. Serial No. 547,065.

To all fr0/10m t may concern.'

Be it known that I, DAvrn lV. THORNTON. a citizen of the United States, residing at Tacoma, in the county of Pierce and State of lVashington, have invented certain new and useful Tmprovements in Hinge and Lock Structures; and T do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved hinge and one object of the invention is to provide a hinge having leaves to be pivotally connected and an improved construction of pintle for pivotally connecting the leaves, lock means being associated with the pintle and one of the leaves for releasably locking the leaves against pivotal movement. Vith this construction, the hinge may be held against swinging movement and therefore a door may be secured either in a closed or fully open position or at any point intermediate the closed and fully open position. l

Another object of the invention is to so construct the hinge as to provide a lockable hinge in which one of the bearing knuckles of a leaf may be provided with clutch teeth for engagement by teeth of a clutch member slidably mounted upon a bearing knuckle of the other hinge leaf, the pintle being pro-vided with means for moving the clutch sleeve into and out of engagement with the clutch sleeve of the first hinge leaf.

Another object of the invention is to so construct this hinge that it may be readily taken apart when so desired.

Another object of the invention is to provide a hinge of the type specified which will have a simple construction and will consist of a comparatively few number of parts all of which will be strong and durable and not liable to readily break or get out of order.

This invention is illustrated in the accompanying drawings wherein:

Figure l is a View showing the hinge in elevation with the lock in position to permit swinging of the leaves.

Figure 2 isa view showing the hinge in elevation with the lock moved to hold the leaves against swinging.

Figure 3 is a view showing the hinge partially in elevation and principally in longitudinal section.

Figure A is a transverse sectional view taken along the line 1 -4 of Fig. 3.

Figure 5 is a sectional view taken along the line 5 5 of Fig. l.

Figure 6 is a group view showing in perspective the elements of the hinge.

Figure 7 is a View similar to Fig. 3 showing a slightly` modified construction of pintle.

Figure 8 is a group view showing in perspective the pintle used in Fig. 7.

Figure 9 is a fragmentary sectional view showing a modified construction of lock.

This hinge is provided with the two leaves l and 2 which are provided with bearing knuckles 3 and 4.-. These bearing knuckles 3 and i extend in overlapping relation in the usual manner and are toreceive the pintle lso that the hinge leaves will be connected for pivotal movement. The upper bearing knuckle A of the leaf 2 is provided with a collar portion 5 which may be formed integral with the leaf or may be formed of a sepa-rate piece secured about the upper bearing arm in any desired manner so that it will remain stationary. This collar is cut to provide clutch teeth and may therefore be referred to as the clutch element of the leaf 9.. A sleeve 6 which is slidably mounted upon the upper bearing arm 3 of the leaf l is out to provide clutch teeth for engaging .the teeth of the clutch collar 5 and since the sleeve 6 cannot turn upon the upper bearing arm of the leaf l, it will be readily seen that when the movable clutch element or sleeve 6 is in the position shown in Fig. 2, the two leaves will be securely locked against turning. The clutch sleeve 6 is internally threaded inthe form shown in Figs. 3 and 7 and lits loosely upon the upper bearing arm 3 so that the sleeve can be moved vertically into and out of engagement with the clutch collar 5.

Tn order to pivotally connect the two leaves there has been provided a pintle which in the form shown in Figs. l through 6 is in the form of a tube 1l which passes through the openings of the bearing arms 3 and 4. A rod or stem l2 extendsy through this tube 1l and is provided at its upper end with a threaded plug element 13 from which eX- tends a head 14 so that this plug may be turned to impart movement to the collar 6 towards and away from the collar through engagement of the threads of the plug with the threads of thc collar. The lower end portion of the rod 12 extends beneath the hinge and is threaded to receive a fastener 15. It will be readily seen that while this fastener 15 serves to prevent the rod and tube from moving longitudinally, the rod will be permitted to rotate freely and the clutch sleeve 6 thus brought into and out of engagement with the collar 5 when so desired.

The modilied construct-ion shown in Figs. 7 and 8 is very similar to the pintle shown in detail in Figs. 3 through 6. In the form shown in Figs. 7 and 8, the rod 12 is relatively short and instead of extending entirely through a tube, this short rod 1Q fits into a pocket 16 formed in the upper end portion of a i'od or pivot pin 17. This rod or pivot pin 17 is put in place as shown in Fig. 7 and has its lower end resting upon the threaded stein 13 which is screwed into a threaded opening formed in the lower hinge knuckle 3 of the leaf 1 and provided with` a head 19 at its lower or outer end so that it can be readily put in place or removed when so desired. Then removed, the rod 17 may drop out of place. No fastener is necessary for the rod 12 as the weight of the threaded plug 13 and turning head 14 will retain it in place.

'Vhen the hinge shown in Figs. 1 through 6 is in use and put in place with one leaf secured to the door jamb and the other to the door, swinging of the door to an open or a closed position will of course move one of the leaves relative to the other. It is of course understood that ordinary hinges of the proper size may be used to mount the door in addition to the hinge which is provided with the locking structure. lVhen a door is closed and it is desired to prevent its being opened, or when a door has been par tially or fully opened and is desired to prevent it from blowing shut, it is simply necessary to turn the plug 13 by means of the head lei and thus cause the sleeve 6 to be nio `ed vertically upon the upper bearing knuckle 3 into engagement with the teeth of the collar 5. lVith these teeth interlocked, the leaves of the hinge will be held against swinging movement and the door cannot be moved until the plug has again been turned, but in an opposite direction, to move the collar out of engagement with the collar 5. lVith the fastener at the lower end of the pintle removed, the pintle can be withdrawn and the hinge taken apart and easily cleaned and any necessary repairs made and then reassembled. There has thus been vprovided a hinge having a locking device which is very simple in construction and very efficient in operation.

The operation of the form shown in Figs. 7 and 8 is the same as that of the form shown in Figs. 1 through 6 except that when taking the hinge apart, it is only necessary to withdraw the stem 12 from the socket 16 and remove the plug 18. The pin 17 will then drop out of place and the leaves of the hinge will be disconnected.

ln Fig. 9 there has been shown a further modification of the construction. In this form, the clutch sleeve 6 is untlireaded and is provided with a side opening into which lits a pin 7 carried by a spring strip 8 which is secured to the clutch sleeve and extends upwardly above the same and terminates in a head 9 which may be grasped when it is desired to lift the sleeve (3 out of gripping engagement with the clutch collar 5. The strip 8 has sutlicient strength to normally retain the pin 7 in a recess 10 formed in the upper bearing knuckle 3 but will permit the pin to move out of the recess and thus release the sleeve so that the sleeve can be moved to release the sleeve when unusual strain is placed upon the hinge. The pintle 20 used in this forni is an ordinary pintle such as is generally used in connection with liiiio'es.

lldhen the form shown in Fig. 9 is in use, the movable clutch collar will ordinarily hold the door against swinging movement when the clutch collar is in a locked position and held in this position by the latch. Since the stem is free to slide in the sleeve member which pivotally connects the leaves, excessive wind pressure against a partially open door will cause the teeth to act as cams and force the movable clutch upwardly to release the clutch and permit the door to swing. Under ordinary circumstances, the clutch sleeve 6 will serve to hold the door against swinging until the sleeve is lifted by means of the strip 8. The sleeve shown in Figs. 7 and 8 will also be permitted to move to a releasing position under excessive strain but the weight of the sleeve, plug 13 and head 14: will normally retain the sleeve in an operativi-i position.

I claim:

l. A hinge having leaves provided with bearing knuckles iii overlapped relation, a stationary clutch collar carried by a bearing knuckle of one leaf and held against rotation thereon, a clutch collar slidah-le upon an adjoining bearing knuckle of the other leaf and held against rotation thereon and movable towards and away from the stationary clutch collar, and a pintle ele aient passing through the bearing knuckles and having a portion in engagement with the movable clutch collar for moving the same into and out of engagement with the stationary clutch colla-r and for retaining the movable clutch collar in a set position.

Q. A hinge having leaves provided with bearing knuckles in overlapped relation, a stationary clutch collar carried by a bearing knuckle of one leaf, a clutch collar slidable upon an adjoining bearing knuckle of the other leatl and movable towards and away from the stationary clutch, and a pintle element passing through the bearing arms and rotatable and having threaded engagement With the movable clutch element for imparting sliding movement to the same when the pintle element is rotated and for retaining the movable clutch element in an adjusted position Whenrotation is stopped.

3. The structure of claim 2 having the pintle element in the form of a sleeve passing through the bearing knuckles, and a stem in said sleeve having a threaded head at its upper end engaging the threaded clutch collar and imparting sliding movement to the same When rotated.

4. The structure of claim 2 having the pintle element in the form of a sleeve in the bearing knuckles, a stem in the sleeve having a threaded lower end extending through the sleeve, a cap screwed upon the threaded lower end oit' the stem, and a threaded plug carried by the upper end of the Stem and having threaded engagement with the movable clutch collar.

5. The structure of claim 2 having the pintle element in the :form of a sleeve in the bearing knuckles, a stem loose in the sleeve and movable longitudinally thereof and having a threaded plug element at its upper end in threaded engagement with the movable clutch collar, the pintle and movable clutch collar being movable as a unit to release the stationary clutch element when excessive turning strain is placed upon the hinge.

In testimony whereof have hereunto set my hand.

DAVID lV. THORNTON. 

